Patents by Inventor U-Fu Chen

U-Fu Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Air resistance excerciser with negative ion generator
    Patent number: 5048824
    Abstract: An air resistance exerciser with negative ion generator mainly includes an air resistance exerciser, a generator, a circuit board, and a ion generator. It is characterized by a small scale generator provided beside a blade wheel in the rotation mechanism of the exerciser at a proper position. When the blade wheel rotates and drives the generator to generate power, the power generated by the generator passes the circuit board and is voltage stabilizing and voltage increased to be used as the power source of the ion generator. The ion generator generates negative ions which combine with purified air to be discharged from the ion generator so that drifting dusts in the air can be minimized.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: September 17, 1991
    Assignee: Ya Te Industry Co., Ltd.
    Inventor: U-Fu Chen